Schrader 20395 TPMS Plastic Sealing Valve Cap - Pack of 100 Schrader is the global leader in TPMS innovation, design, quality, and technology More than 190 million Schrader sensors are in operation worldwide  more than 54% of the global vehicle market Patented Schrader technology embedded in all OEM and Aftermarket-replacement sensors Schrader offers direct-fit and programmable EZ-sensor replacement sensors Defect-free sensors manufactured in highly-automated, secure Schrader manufacturing environments A sealing cap is important for all TPMS systems Keeps moisture and dirt out of the electronic sensor Insures that the primary seal exists to avoid air leakage Box of hundred